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We measured synchronization performance of FlexRay for OSEKtime and described why we must consider synchronization performance. Previous studies present scheduling methods for time-triggered systems when ideal constraints WCET(Worst Case Execution Time), deadline, resource dependency, etc.) are given. However, there are some differences between real distributed systems and ideal constraints. Because...
Control system embedded software is steadily increasing in size and sophistication, because of the complexity of the hardware and environmental interfaces associated with it. Control algorithms are now more complex and require more time and cost to implement that real control systems. This paper presents a method of developing electronic control units (ECUs) based on OSEK-VDX using model-based design...
This paper presents the unified gateway for an in-vehicle network using LIN, CAN and FlexRay. The presented gateway uses MPC5567 MCU, including LIN, CAN, and FlexRay communication controllers. In this paper, we propose a reliable gateway algorithm and architecture. In addition, an embedded system is developed for the gateway and the gateway function is implemented. The proposed system is evaluated...
As the number of electronic control units (ECUs) in vehicles increases, ECUs can create a large and complicated in-vehicle network. Therefore, in-vehicle networks need a network management algorithm for improved reliability. The open system and corresponding interfaces for automotive electronics/vehicle distributed executive (OSEK/VDX) set a goal of being the industry standard for real-time operating...
This paper presents an analysis of the task switching time of the ECU embedded system ported to OSEKturbo. The OSEK is a real-time operating system to be used in automotive applications. The complexity of automotive applications varies considerably from simple control functions in the field of body electronics to high-end applications in the powertrain. An ECU embedded system is made using the MPC565...
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